Java Tricky Questions 1. Is there any difference between a = a + b and a += b expressions? When we add two integral variables e.g. variables of type byte, short, or int in Java, then they are first promoted to int type, and then addition happens. The += operator implicitly casts the result of addition into the type of variable used to hold the result. What happens when you put return statement or System.exit () on try or catch block? Will finally block execute? It is a popular tricky Java interview question. Most of the programmers think that no matter what the finally block will always execute. This question challenges that concept by putting a return statement in the try or catch block or calling System.exit() from try or catch block. You can answer by saying that finally block executes even if we put a return statement in the try block or catch block. But finally block does not execute if you call System.exit() from try or catch block. 2. What does the expre
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